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  <title>Returns the first key-value pair from the named map</title>

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</div><hr /><div id="function.yp-first" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">yp_first</h1>
  <p class="verinfo">(PHP 4, PHP 5 &lt;= 5.0.5)</p><p class="refpurpose"><span class="refname">yp_first</span> &mdash; <span class="dc-title">Returns the first key-value pair from the named map</span></p>

 </div>
 
 <div class="refsect1 description" id="refsect1-function.yp-first-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="type">array</span> <span class="methodname"><strong>yp_first</strong></span>
    ( <span class="methodparam"><span class="type">string</span> <code class="parameter">$domain</code></span>
   , <span class="methodparam"><span class="type">string</span> <code class="parameter">$map</code></span>
   )</div>

  <p class="para rdfs-comment">
   Gets the first key-value pair from the named <em><code class="parameter">map</code></em>
   in the named <em><code class="parameter">domain</code></em>.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.yp-first-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    
     <dt>
<em><code class="parameter">domain</code></em></dt>

     <dd>

      <p class="para">
       The NIS domain name.
      </p>
     </dd>

    
    
     <dt>
<em><code class="parameter">map</code></em></dt>

     <dd>

      <p class="para">
       The NIS map.
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.yp-first-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Returns the first key-value pair as an array on success, or <strong><code>FALSE</code></strong> on
   errors.
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-function.yp-first-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-4590">
    <p><strong>Example #1 Example for the NIS first</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$entry&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">yp_first</span><span style="color: #007700">(</span><span style="color: #0000BB">$domain</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"passwd.byname"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$key&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">key</span><span style="color: #007700">(</span><span style="color: #0000BB">$entry</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$value&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">$entry</span><span style="color: #007700">[</span><span style="color: #0000BB">$key</span><span style="color: #007700">];<br /><br />echo&nbsp;</span><span style="color: #DD0000">"First&nbsp;entry&nbsp;in&nbsp;this&nbsp;map&nbsp;has&nbsp;key&nbsp;"&nbsp;</span><span style="color: #007700">.&nbsp;</span><span style="color: #0000BB">$key&nbsp;</span><span style="color: #007700">.&nbsp;</span><span style="color: #DD0000">"&nbsp;and&nbsp;value&nbsp;"&nbsp;</span><span style="color: #007700">.&nbsp;</span><span style="color: #0000BB">$value</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

   </div>
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.yp-first-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="function.yp-next.html" class="function" rel="rdfs-seeAlso">yp_next()</a> - Returns the next key-value pair in the named map</span></li>
    <li class="member"><span class="function"><a href="function.yp-get-default-domain.html" class="function" rel="rdfs-seeAlso">yp_get_default_domain()</a> - Fetches the machine's default NIS domain</span></li>
   </ul>
  </p>
 </div>


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